KNMI UV-polarisation lidar Ascension Island initiative (ASCII) campaign data
A ground-based UV-polarisation lidar was deployed to infer cloud droplet sizes and droplet number concentrations near the cloud base of cumulus clouds over Ascension Island. The measurements were part of the 2016 en 2017 ASCII campaigns to study aerosol-cloud interactions in the stratocumulus to cumulus transition zone of the southeast Atlantic Ocean. Measurements of uncalibrated attenuated backscatter were acquired at 30 seconds and 15 meters resolution.
Simple
- Date (Publication)
- 2023-01-26
- Edition
-
1.0
- Citation identifier
- urn:xkdc:ds:nl.knmi::cesar_uvlidar_ascension_island_attenuated_backscatter/1.0/
- Status
- Completed
- Point of contact
-
Organisation name Individual name Electronic mail address Role Koninklijk Nederlands Meteorologisch Instituut (KNMI)
Point of contact
- Maintenance and update frequency
- Not planned
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DG Discovery Properties Vocabulary 1.0
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Climate
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laser
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cloud
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aerosol
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lidar
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- Keywords
-
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Open data
-
- Use limitation
-
No use limitations
- Access constraints
- Other restrictions
- Other constraints
- Classification
- Unclassified
- Language
- English
- Character set
- UTF8
- Topic category
-
- Climatology, meteorology, atmosphere
)
- Begin date
- 2016-09-03
- End date
- 2017-09-10
- Reference system identifier
- http://www.opengis.net/def/crs/EPSG/0/4326
- Distribution format
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Name Version NetCDF
3
- Distributor contact
-
Organisation name Individual name Electronic mail address Role Koninklijk Nederlands Meteorologisch Instituut (KNMI)
Point of contact
- Transfer size
- 50
- OnLine resource
-
Protocol Linkage Name landingpage
https://dataplatform.knmi.nl/catalog/datasets/index.html?x-dataset=cesar_uvlidar_ascension_island_attenuated_backscatter&x-dataset-version=1.0 KNMI Data Platform
- Hierarchy level
- Dataset
Quantitative result
- Value
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The data were acquired during one month in 2016 and one month in 2017: from 2016-09-03T11:36:15 to 2016-09-29T08:19:04 and 2017-08-15T17:30:11 to 2017-09-10T07:29:47
- Statement
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Converted from the high-resolution Leosphere ASCII files from the CESAR (Cabauw, The Netherlands) Leosphere ALS-450 lidar, relocated to WideAwake airfield, Ascension Island.
Metadata
- File identifier
- 7a38038e-9e1a-11ed-b02e-52de3d22f2a7 XML
- Metadata language
- English
- Character set
- UTF8
- Hierarchy level
- Dataset
- Date stamp
- 2025-05-02T09:29:47.712Z
- Metadata standard name
-
ISO 19115
- Metadata standard version
-
ISO 19115:2003 NL Kernset 1.3 KNMI 2.1.0
- Metadata author
-
Organisation name Individual name Electronic mail address Role Koninklijk Nederlands Meteorologisch Instituut (KNMI)
Point of contact
- Other language
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Language Character encoding Dutch; Flemish English UTF8
Overviews
Spatial extent
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